Pipelines, energy and natural resources

[suffolkowner]

i took it to be capacity efficiency

 

[ytz]

65% efficiency is impossible.

The Betz limit is around 60% for turbine energy capture of wind going past it. After you calculate in other efficiency losses (turbine conversion to electricity, resistances both mechanical and electrical) the best efficiency you're every going to get is 80% of that 60%, (so 50%).

That's not a bad conversion rate.

You're right on Betz law. Gawd. I haven't read my textbook in a decade. Correct.

Either way it most certainly wasn't 25-30% of rated capacity for offshore though. Quick Google says UK is currently at 44% offshore. I think you get closer to the 50-60% of rated capacity with size.

 

[suffolkowner]

My mistake. I haven't read my textbook in a decade. Correct. But it most certainly wasn't 25-30% for offshore though. Quick Google says UK is currently at 44% offshore. I think you get closer to the 50-60% range with size.

50 of 60 is 30 though